Physaria calderi |
Physaria klausii |
|
---|---|---|
Calder's bladderpod |
Rogers Pass or klaus' or divide bladderpod |
|
Habit | Perennials; caudex simple or branched; densely pubescent throughout, trichomes (sessile or subsessile), rays distinct or slightly fused at base, furcate or bifurcate, (strongly umbonate, tuberculate, tubercles often relatively larger, fewer over center). | Perennials; caudex simple; densely pubescent, trichomes (loosely spreading), 3–5-rayed, rays distinct, furcate (with exceptionally long branches). |
Stems | simple or few to several from base, usually erect to spreading, sometimes prostrate, 0.5–2 dm. |
simple from base, erect to decumbent, (slender), 0.6–1.5 dm. |
Basal leaves | blade oblanceolate, 2–3 cm, margins entire. |
blades obovate to deltate, 1.5–3(–4) cm, margins entire or outer one with 1 or 2 broad teeth. |
Cauline leaves | (sessile or proximal shortly petiolate); blade narrowly oblanceolate, 0.5–1.5 cm, margins entire. |
blade oblanceolate to spatulate, 0.6–1.5 cm, margins entire. |
Racemes | loose. |
loose. |
Flowers | sepals ovate to elliptic, (3–)4–5(–6) mm, (median pair often thickened apically, cucullate); petals obovate, (6–)7–10 mm (nearly as wide, abruptly narrowed to claw, ca. 1 mm wide). |
sepals (green-yellow, often tinged with purple), elliptic, 3–4.6 mm; petals oblanceolate, 6–8 mm (claw expanded). |
Fruiting pedicels | (erect to divaricate or ascending, sometimes curved), (5–)10–20(–40) mm, (stout). |
(sigmoid), 5–9 mm. |
Fruits | subglobose to ellipsoid, compressed (usually angustiseptate), to 8 mm; (valves not retaining seeds after dehiscence); replum as wide as or wider than fruit; ovules 10–14 per ovary; style 1–2 mm. |
(depressed), broadly obovate, compressed (angustiseptate), 2–4 mm, (apex slightly bilobed to nearly truncate); valves densely pubescent, trichomes strongly ascending, spreading, long, (appearing fuzzy), pubescent inside; ovules 4 per ovary; style 3–4 mm, (pubescent or glabrous). |
Seeds | plump. |
flattened. |
2n | = 20. |
|
Physaria calderi |
Physaria klausii |
|
Phenology | Flowering Jun–Aug. | Flowering Jul. |
Habitat | Dry rocky summits, limestone flats and slopes, alpine knolls | Open gravel slides, solifluction cross-stripes of shale rubble, barren shale-derived soil |
Elevation | 600-1500 m (2000-4900 ft) | 1200-1900 m (3900-6200 ft) |
Distribution |
AK; NT; YT |
MT |
Discussion | Physaria calderi is known from the Ogilvie and Richardson mountains. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 629. | FNA vol. 7, p. 647. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Lesquerella calderi, Lesquerella arctica subsp. calderi | Lesquerella klausii |
Name authority | (G. A. Mulligan & A. E. Porsild) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) |
Web links |